210221440041142 has 8 divisors (see below), whose sum is σ = 315345239571600. Its totient is φ = 105106360183944.

The previous prime is 210221440041127. The next prime is 210221440041149. The reversal of 210221440041142 is 241140044122012.

210221440041142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 210221440041142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210221440041149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2179858042 + ... + 2179954477.

It is an arithmetic number, because the mean of its divisors is an integer number (39418154946450).

Almost surely, 2^{210221440041142} is an apocalyptic number.

210221440041142 is a deficient number, since it is larger than the sum of its proper divisors (105123799530458).

210221440041142 is a wasteful number, since it uses less digits than its factorization.

210221440041142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4359836630.

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 210221440041142 its reverse (241140044122012), we get a palindrome (451361484163154).

The spelling of 210221440041142 in words is "two hundred ten trillion, two hundred twenty-one billion, four hundred forty million, forty-one thousand, one hundred forty-two".